1: Was English test been done by Peter when you came?

2: Emails are usually sent me

3: New schools had been built for the poor children before the flood took place last year

4: Their complaints should be sent to the man office

5: The fire can be caused by a short circuit

6: Lan's friends are going to be invited by her to her birthday party

7: That old building must be repaired

1.  Was english test being done by peter when you came? -> quá khứ tiếp diễn( past continuous)

2. Emails are usually sent to me -> hiện tại đơn( simple present)

3. New schools had been built for the poor children before the flood took place last year-> quá khứ hoàn thành( past perfect)

4. Their complaints should be sent to the man office-> modals verb passive

5. The fire can be caught by a short circuit-> modals verb passive

6. Lan's friends are going to be invited -> special passive 

7. That old building must be repaired -> special passiive 

8. Phong is elected their leader -> simple present 

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